Printing-telegraph.



' No 849,484. PATENTED APR. 9, 190?;

- 0. J.-MENASOO.

PRINTING TELEGRAPH.

APPLIOATION rum) MAR. 5, 190a.

' a SIGHTS-$113121 1.

"L 1. 7 5 0/413 m I v E H I:

I W1 Meagan PATENTED APR. 9. 1907.

Now 19,484

0. J. MBNASUO. PRINTING TELEGRAPH. APPLICATION FILED MAR. 5, 1906.

D SHEE TS*SH BB '1' 2.

31 mentor (fifar/em/Mekmsca PAiENTED APR. 9, 1907 mum 18 1.

C. J. MENASCO. PRINTING TELEGRAPH.

APPLICATION FILED MAR.5,100G.

9 SHEETS-SHEET 3.

aamewtor MQ Q m3 PATENTED APR. 9. 1907.

0. J. MENASGO. PRINTING TELEGRAPH. APPLICATION FILED MAR. 5,

B SHEETS-SHEET 4.

awawloi I (War/as cf fife/10600 1 2/01 [Incons No; 849,484. PATENTED APR. 9, 1907 0. J. MENASGO.

PRINTING TELEGRAPH. APPLIGATION FILED MAR.5,190G.

BSHEETE-SHBBT 6.

1 31 weni'qz witneomo M ,W w

' No.s4 9,4s4. PATENTED APR.9,1907.

G. J. MENA SGO. PRINTING ELEGRAPH. APPLIOATION FILED 1MB. 5, 1906 9 SHEETS-BHBET 6. 12.5

PATENTED APR. 9, 1907..

0. J. MENASOO. PRINTING TELEGRAPH.

APPLICATION FILED )(AB, 5, 190B.

9 SHEETS-451E311 1.

.: Witmwaca No. 849,484. PATENTED APR. 9, 1907. 0. J. MENASGO.

PRINTING TELEGRAPH; APPLIOATION rum) mm. 5. 1000.

a snnnws-annsr a.

I PATENTED AP 5, 1901.

0. J. mnmsco. PRINTING TELEGRAPH. APPLICATION TILED [A3, 6, 1908.

UNITED sTATns PATENT OFFICE;

CHARLES J. MlENASCO, OF BIRMINGHAh/I, ALABAMA, ASSIGNOR OF TWENTY- FIVE ONE-HUNDREDTl-IS TO RUFUS NJRHODES AND THIRTY ONE-HUN DBEDTHS- T RICHARD C. BANKSTON, BOTH OF: BIRMINGHAM, ALA- BAMA.

PRINTING-TELEGRAPH.

Specification of Letters Patent.

Patents ad April 9, 1907.

To (LU whom; it 71m con-cam Be it known that I, (Jr-nouns J. M'ENASCO, a citizen of the United Staics, residingin; Birmingham, in the county of J eficrson. and State of Alahmna, have invented new and useful lmprovoincnts in Printingir]egraphs, of which the following is a spccificnt'o' My invcniioi'i relates to improvement-s in elect- 1cally-controlled type-writers which are particularly designed in: use telegraph typcvritcrs, any desired number heingconncctcd in scrles by. a. slnglc wire an d adapted to copy in exact duplicate messages Written on the typo-writer which for the time being.

serves as a transmittingmachine.

l propose Lo utilize an 8lECi-T1CLl makeand-breuk tion of the keysoE th'e rrsnsInitting-machinc and interrupts said circuit a predetermined number of times for each. key, the makes and breaks of the main line causing locall circuit selecting mechanisms to move in unison in the several machines in circuit. Tl'lQScl .25 mechanisms comprise selec'tonurms which are advanced over local circuitcont-sci;- plai-es .\\-'1th a stop-hy-step movement from :t-heir initial positions, the synchronous moveincnt. of the) selectorgrins being sinlult a 3o neouslynrrestm! upon the completion of the number of impulses designated the trans ruining-key operated at the scnding inn chine. These arms now stand the some number of spaces distant from their initial Positions and close lo'cul 'circl-iits on corrcnnihcs of tho main-linc"circuit are required lhi-ru' stops distant from the :U'Jnls" zero m- I device For tho main-line circuit which is GlBClZIlCfl'llY controlled by the opera-k.

- initial position.

. Hllruolirm and nrrnngomon! m" i sitio'n. To further increase the speed of the I 1nccha1nsm,I,uda t the local-circuit selecting rnechunisins to cot-only an instantaneous closing of the desired. local circuits, after which the selector-arms are rapidly and. autornatxically returned to th 1? initial position While the printing or carriage-shifting func 6o 't-ions of tho solenoids in the local circuits last closed are being performed.

My invention contemplates the provision of automatic means to hold the solenoid or electrornsgnet in alocal circuit energized for 6 5 a suflicient time to enable it to properly func- I man after its circuit has been made and in stantly broken at the selecting mechanism.-

My invention further contemplates the use of automatic mechanism to open on the local circuirs during the. travel of a selectorsrln over their respective contacts and t0- clcsc the circuit connected to the contactplate with which said arm is in engagement WhK-YH its advance is arrested. I My invention further.comprises inrncrovements in the operating lnechanism for each selecior arm, an elcctromechnnically controlled-s.ctus.tor being adapted to engage and mo vs the arm with. stenlw-stcp H1 ovc-ment over the contact-plates un til. 'its travel is arrested by a licyhctuutml stop, whereupon the arm is automatically disengaged. from said actuator rind returncd with great rspicL ity by a spring or other-similar nzeans to its 8; 1 thus give tl ieinrms a controlled step-by-step advance in synchronism from a unison-point until t-ln-i y close. a local -circuit, after which. they are freed and swung rapidly to their initial position or ,unisonpoint, the time required for lhis being l'mrdly greater than that necessary For the airing of a key or the: nrljust im-n'itol the carriage.

My 'im cntion further 'coinpris s :1. noi'el mechanism for locking the. he -o1i rne(.l. 9 5 stops for tho selector-arm one nin lllllll in tho path of" sundown} sa d 1ncchaniz-un preventing 2i st op being. raised until the stop lust raised and the solrn-Lor-orrn have bin-lire My invemion. further comprises various other improvements in the .lm-rlninisl'n for opcrzu in he '.'.-.rrinp;ul1iher-ding n. com'inuons strip of [m nu lo tho lHll-(lllll and for cork l-rollhu! :m't'mlh rlhlmn'nn l nlw in 1hrron- I05 which in their preferred embodiment are illustrated in the accompanying drawings, wherein Figure 1 is a top plan view of an electro- --mechanical type-wr ter provided with improvements constituting my present invention," the endless-paper fee being removed. 2 is a similar view with the top of the casing removed and with the keyboard broken away. Fig. 3 is a longitudinal vertical .10 sectional viewshowing the'mternal mechanism in side elevation. Fig. 4 is a diagrammatic' view of the circuit connections in a transmittingmachine and illustrates the manner in which the receivin '-machines are 1 5 connected with and cgntrolled by the transmittingemachine. Fig. 5 is an enlarged detail view, in side elevation, of the mechanism controlling the movements of the selectorarm. Fig.6 is adetail. view, in side elevation,

26 of the core 'cal'ryling1 the dog for winding the coil-spring whic a vances thejselector-arrn. Figs? isa plan view of said spring. Fig. 8 is an'enlarged view, broken away, of a segment of the crown gear-whee1 which moves the se- 2 5 lector-arm. Figs. 9 and 10 represent, re-

spectively, top planand and views of the se lector-arm in itsinitial' or unison position and "illustrates the mechanism for controlling the stopi-lock. Fig. 11 is an enlarged plan view, 30 bro en away, of a ortion of the circularlydisposed contact-p ates which the selectorarm engages.- Flg. 12 is a cross-secthmal view along the lines a as, Fig. 11, the selectorarm bein shown-in dotted lines. Fig. 13 3 5 shows a p nrality of the stops and illustrates the manner in which they are adapted to pass through the 'stop'dock late and be held thereby. Fig. 14 is a detaii view of the endles's-ribhomfeed mechanism. Fig. 15 isadeo tailview Ofltt guide for the ribbon. Fig; 1.6

is an enlarged plan view of the printing-carriage, showing the mechanism for spacing, ruling, and m'oving'the platen. Fig. 17 is a rear view of' the mechanism for spacing the 5 printing-carriage. Fig. 18 is an enlarged view, in side elevation, of thecarriage-slnfting mechanism. Fig. 19' is-a top lan view of Fig. 18. Fig, 20 is a detail viewo the platens shifting rodand eccentric operated the shift mechanism., Fig. 2 '1.'isan enlarged sectional view of one of the printing and carriageoperating solenoids, illustrating the secondafi'lor shunt circuit connections. Fig. 22is a ont view of the continu'ouspaper feed devices. Fig; 23 is a top-plan view of-thc paper-feed devices shown in Fig. Fig. 24 is a side elevationof' said papenfeed devices.

, Similar reference-numerals refer to similar parts throughoutthe-drawings.

trated inflthe drawings 1- provide a -ty ew'r ter machine having a base 1, a detacha le top 2, and a keyboard 3, above which: the .keys 4 arearrangerd in three banks, there be- 65. ing-preferabl'yt controlled in its movements.

In the embodiment of myinvention illusty keys 'ii kfall, twentv-sixfor rinting and one each to shift, space, rule, ant return the carriage, which is electrically- 4 The keyboard is provided with slots through which the keyshanks 5 pass and. connect at their lower ends to bellcrank levers 6, pivotally mounted in studs 7, carried by a stationary. plate 8, rigidly mounted below the keyboard. Each of these levers 6 adapted to operate an arm 9, which through a second bell-crank lever 10, hhounted on a standard 11, acts to lift-a stop 12. As seen in Fig. 2, the arms 9 and 10 are so dis osed I that the stops 12 may be ar ranger in a semicircle, their upper ends'entering guideeopenings 13 in a curved'pla'te 14, through which the steps are adapted to projec't when lifted by epressing their'corre s ondin'g keys for the purposes of arresting tiie selector-arm and making the desired 10- cal-circuit connections to the printing or other operating devices for the type-Write machine which are electrically OOIltI'Ollczi.

- I shall firstdescribe my invention as ap-. plied to a single type-writing machine and shall later show how other maehines may be connected up inseries therewith and synchronized, so that all will print "duplicate .matter. 1

The plate 14, which is of any suitable insulating material, carries a series of thirtycqntact-plates 1.5, one'for-each key, suitably in sulated from each other and connected by separatetvires 17 to a series of thirty contactlates 18, mounted near the top of the keyiioard and adapted' to engage other contacts 127, carried by the removable top 2. The plate 14 has at its inner edge a c'u rved'co'n tact-strip 19., spaced equidistantfroni the inner edge of the row of plates 15. Movable in a suitableguide formed by an overhanging portion 20 near the outer ed e of the plate 14 term the lock is a curved plate 21, which plate for stops 12. This plate 21 is provided'with a plurality of slots 22' in its concave edge, one for each of the stopsli, which are adapted to project there'throughwhen lifted. The slots'22 are but little wider than the stops, each'of which is rovided wit'h a notch 23 in its right-hands ge, Which-when the stop is raised comes into osition to-receive the plate 21 when shifter to the left, as seen in Fig. 13.- The purpose ofzthis is to enable-the lock-plate to engage in the notch 23 of'the elevated stopand lock it in its raised a position, While the movement of the plate to efiect. this brings the other slots 22 in,the

plate out-of register with the other stops, so

time being raised.

that the plate prevents more than one at a shafts 24, each provi ed' with a rowof ten rocker-arms 25, which have bifurcated ends "1: at 1projectabo've the keyboardfland 'strad-Y shanks '5 of the several keys in the' dete i held depresse 14 and adapted to engage a tooth 31 on the lock-plate 21. A spring 82 at the left-hand end of late 21 tends to draw it to the left when tl ie dog 30 is tripped and moves the tooth 3-1 to a (position over the dog, which is arm 29 the local controller-circuit is held closed until the plate 21 is shifted. to the right in the manner hereinafter described. Upon. the depression of a hey its corresponding stop -12 is raised, the local controller-circuit is closed by switch-arm H7, and. the dog 30 re-- lenses the plate 21, which shifts and locks the raised stop 12 ill-position above it and holds the controller-circuit closed.

25 The local controlleccircuit closed by the operation of a key. comprises the wires a and b, which connect with the positive and negative' terminals "of the local battery B. Wire 1) leads to a switch C and through the solen- 0 old 33. An anvil 34, vertically movable in guides 35, secured to the frame, carries at its lower end a oonteet-plece 36 to close switch 0 and at its upper end is bent river the top of;

solenoid 33 and projects downwardly to a 35 point where it will be struck by the core 37 as it is drawn upwardly by the attractive power of the solenoid when Ms circuit is closed.

The blow of the core serves to'lift the 'zmvih and break the circuit to the solenoid, which 0 therefore permits the, core and anvil 34 to cause it when used as a telegraph typewriter to similarly make and break the cir cult to e. relay-magnet 38 at the switch Cf, the main-line batteries B being in the lid 9 circuit. To this'end I provide the anvil v, {I

5o second contaet-piece39, which opens a iid closes tlu switch (3 with the switch C. The nmgnet 38 nets to attract a switch-arni 40 against the action of a spring and close the switch I so that current flows from battery I 55 -15 through wires 0, at, and. e. Included in this circuit a solenoid 41, which controls the oporation oi the selector-arm in the manner which will now l. e dc'ecribed.

It has already been seen that immediately 60. upon the depression of a key a circuit is closed through the solenoid. 33, which in the manner descr: bed, nets to rapidly make and break the circuitto the relaynnagnet 3S and solenoid 41 This latter solenoid is'mounted on supports c 42 in horizontal p- ,-;iti m and provided with thereby, so that through the two cores 43 and 44, one at each end, which are norm elly drawn outwzrrdl y by coil-spri1 gs 45 and 4:6, resper-ligely. Adjacent to the solenoid 4i a second solenoid 47, supported in e: wu'ticnl position by augledrons 48, counectcd to the base 1. The core 4!] of this solenoid carries at its upper end the selectol arin 50, which is horizontally disposed and provided with a contact-wheel 5], ro-

tatably mounted thereon, but insulated therefrom by the provision of anon-conducting web 52. The arm is shown mounted on. a stem. 53, connected to the core 49, which latter at its lower end is connected to the base 1 .bye noiled spring 54, which opposes movements of the core to lift-the se lector-s1rm or move it to the left, Fig. 2. The selector-arm is disposed. that its wheel 5] will run between the contact-strip "19 and the inner edges of the contact-plates 15, so as to close the circuit between said strip and any desired one of the contact-plates, which are out out of circuit during the travel of the arm, as will be later described. The arm-50 carries 21, depending tooth 55, which engages a crown geer wheel 56, having eonnecter.

thereto a sleeve 57, through. which the stem 53 passes freely. The sleeve 57 passes freely through. a central opening; in a gezu wheel 5S and through a spring-barrel 59, movable with said gcarSS, being supported at its lower end on the guide-iron 6.0 for the stem 5?}. coiled springfil is connected at its inner end to the sleeve 57 and at its outer end to the barrel 59, its tendency being to rotate the crown-whcel in the direction of the arrow in Fig. 2. y

A double anchor escapement 62, supported by a standard 63, ex'igages the teeth of the crown-wheel 56, permitting it to be moved bV the spring ill the distance of one tooth upon two movements of the esrapcrnent, one in each direction. Each movement of tl'ieescapeincnt, which )erinits the wheel to bchd Vanced half the istance of :1 tooth and lidvances thesclectrm-arm onefull step,- is indepen dent-lycon trolled by the make. or the break of the local c:)ntrollcr-circuit, which. includes the solenoid 41, as the core 43 of the letter connected byan arm 64 to the esrapement and rocks it to the position. shown in F g. 5

when the solenoid is energized upon the make of the controller-choir1t, the spring: 45 acting,

when ibc solenoid is deonergizcd upon the break of said circuit, to move thonrnl (lat against stop 43" and rock the esr-aphmwt to its other position, which permits the crewmwbeelto advance the distance of halfa .l.ootlli. selector-arm into ei'lgagemem; with another circuit contact-plate 1.5. The sch-r-torai'iu will, through thecogent-uncut of its tooth with the crown-wheel, be moved stepbv step ovortlie com nets '1 5 under he conlrol Al" the (r-("ltIl(.l Il(-l'll., ouch step-by=s1cp movmhenta full step-thereby l'u'ir'giizg'the Ioo ' idly connected to .thefcore 37 ofthe makeeir'cuitthrough wire'h-and solenoid 70 to the I battery, The shoulder 73'is so formedjthat Whenthe roller 74 comes to rest at either end end of the core 44'with a laterally(-1projecting spring-pressed pawl 65, adapte as it is drawn inwardly by the solenoid 41 to engage the gear-wheel 58 and advance it one tooth, a spring-pawl 66 acting'to prevent return movement. A lug onthe'eore engages a stopp1ate 44,'which limits its travel. This mo'vement'of the gear 58 is imparted to the spring-ba1rrel 59 and serves to wind the spring. The number of teeth on the gears and 58 being the same, it'will be seen that upon a make and break of the controller-Gin cuit the escapement in. making two. movements will release the crown-wheel one tooth and the pawl will turn the gear 58 one tooth, so that the tension of-the spring remains practically unchanged. 1

. Assuming that the selector-arm is in its initial position, Fig. 2, upon the depression of a key its respective stop 12 is locked in position in the path of the arm's-travel and the local 'contr'oller-circui t closed, whereupon the circuit of the solenoid 41 is rapidly made and broken, and for each make .or-break the selector-jarm is advanced by spring 61 onestep, or thedistance offhalf a tooth on the crqwnwheel 56.

engagement withone contact-plate 15 to the next in the line of its traveluntil the arm strikes the' liftedstop and comes to rest op;

. posite thecontact-platecorresponding to the stop. Immediately upon the engagementof the arm and stop a circuit is closed through the wire f, plate 21, the stop', arm 50,.c0r 51',

spring 54, 'and wiresg and 'c to battery B. Included in this circuit are two solenoids 67, connected in series, which when. energized move their cores 68 tp clutch an armbQ, rigand-break switch C, thereby instantly stoppingthe solenoid 33 from further making or As soon as" thecontroller-circuit is thus held open or closed the solenoid 70 effects the closing of reaking the controller-circuit.

the. rintin.g -circuit, as fO'llQWSI The solenoid 70 is. included in a circuit taken from'wir'e e to a spring switch-arm 71,

mounted upon a stud 72 and provided at its ,jauter end with a shoulder 73, fada ted. to be engaged by a'roller 74, carried by :t' e core 44,

and to'be moved thereby to bring the arm 71 into contactwith asimilar switch-arm 75,

also mounted on stud 7 2 thereby closing the of-it's travel it will permit the spring-arm 71 tofrnovie away from arm-7 5 and break the,

As the arm moves the distance of' -a .ha'lf tooth its contact-wheel 51 passes from circuit to solenoid 70; but when core 44 is rapidly oscillated, as is the case when the selector-arm begins to move, it will hold that circuit closed, the roller movihg so fast that the shoulder prevents arm 71 moving to b'reak'its contact with arm 75, or if the contact is broken it is for so short a period that it will not take client-in the core 76 of the solenoid'70, which is disposed at suchanangle that it will drop by gravity when the solenoid. isdeenergized and close the switch E. This switch. E com rises aterminal 77, connected by wire i to attery B, and a terminal 78,-from which a wire j leads to the solenoid 47. The leeal operating-circuits comprise wires lc,,wli1 ch lead from: the; can

tact-plates- 15 to the several operatingsolenoids for printing or moving ,the platen and connect to this wire 1' beyond the solenoid 47. Itis evident that as the wheel. 51, engages each contact-plate 15 it would close a local circuit from strip 19 through its respective wire 7c and operating-solenoid and solenoid 47 but for thefact that switch E is opened by the ener iza-tion of solenoid 70 as soon as the arm 50 egins to move responsive to the making and breaking of the; controller-circuit. All the local operatingmircuits includingthe wires k are broken until thearm 50 comes to rest, when the action of solenoids 67 hold the controller-circuit open or closed, and core 44 comes to rest, permitting the circuit of solenoid 70 to be broken and 'core 76 to drop and close switch E and the circuit across the wheel 51 to the plate 15 opposite which the seleetor-arm has stopped, thereby energizing the. operating-solenoid corresponding to the key depressed.

' Having" thus described the manner in which. any desired operating-solenoid is onergized by the operation of its respective key becomes necessary to return the selectorarm rapidly and accurately to initial position. According to my invention this is effected in the following manner Thesolenoid 47, which controls the vertical movement of the selector-arm and its en agement with ,the crown-wheel 56, is inclu ed in the local circuits from the contact-plates 15 through the wires 7t and Therefore when the se-.

lector-arm is in its initial position this solenold is cutout of circuit even thou rh switch ioo and the movement of the selector-arm, it

E is closed, since the contact-whee 51 ,is out of engagement with the contact-strip 19,

thereby breakin all the -operating circuits at this point.

Ks soon as the'selector-arm I begins to move and the wheel 51 engagesthe strip 19 and the several. plates 15 successively the controller circuit, which would otherwise be closed thereby, is held broken b the action of solenoid '70 at'switch E.

herefore the solenoid 47 does not become energized until the arm is arrested by one of the stops and the, solenoid -,70 permits the switch E toolos e a local operating-circuit As soon this occurs the solenoid. 47 be comes energized and acts to draw its core 49 upwardly, moving it'end the sclector-arm e suflicient distance to disengage the tooth 65 thereon from the crown-wheel 56, whereupon thq coil spring 54 sets to swing the arm repidly lfiick to'its "initi a1 position. The lifting of itl e arm acts to break the local controi' lei cir cuit lcstjclosed 'by lifting, wheel 51 outfpffengagement with its contact-strip l9.-

"This occurs itlrnos't instantaneously after the nected .by Wire Z wit nri'n strikes the stop and breaks the circuit to solenoid 47st the'seme time. I provide the following means to hold the solenoid 47 energize'd until the'a-rm has completed its re turn movement: A stop 79, which arrests the, return travel of the arin at its initial po-- sitionj consistsof rt sprin -nr1n attached to the platele near its r1 ht and end and con- I 'e. flat armature 80, ivotally connected at 81 to a part carried I the solenoid 47, a-nd adapted at its outer end to cooperate with a contact 82, also suit ably supported frorn the solenoid or other wise and connected with Wire 9' where it enters the upper end of the solenoid. This ermature has an enlarged. circular opening,- through which tliestem 53 passes freely and without contact. This stem 53 also passes "through a cylindrical body 83, of iron or other magnetic metal, fixed in the upper end of the solenoid 47 and adapted to he 'Inagnet-. izedunder-the influence of the induction of. the solenoid and attract the armature 80, so as to move it into contact with 82. A contact-plate 84, connected by Wires'm and e to the battery, is also mounted'on the plate 14 and so disposed that the stop 79'will, engage 'itas soon, as the selector-arm leaves its initial position. The action. of the spring 54 ageinst' the seleetor-ur1n holds the stop 79 bent out of engagement with the contact-plate 84 as loi'lg as the selector-arm 1s in its init al pos1 tion. .'As soon however, as it moves the'circuit is closed to the armature 80, and upon the energizetion of the solenoid 47 the magnet '83 draws the armature '80 downwardly into engageinentWit-h the contact 82 and closes the circuit through the wires 0 m Z,

solenoid 47,- end wire 3' to the battery, the

i switch E being closed and remaining closed.

. durin thc return i'novcment pf the sell-inton arid. lhissecondery or shui 1t c'ircui t through thezsolenold holds its core and the selcctoo zurn l in their raised position until the latter the stop7-zi an d breaks the secondary circuit, "whereupon. the spring drnv" selector-arm downwardly end in;

szgrnu into engagement with the tilled= ihst. u pen the depression 3!) was 'ipped end the piste i c .ioth. 3.8, was shifted by the to lock the stop lifted by ire-yin allowed by the lost motion between core'and the dog 111 a position where the controller-circuit was closed by the switch-arm. 27. To shift the plate 21 back to its initial position and release the stop which has last arrested the movement of the selectonarm', I provide a rocking erm 85, Fig. 2, journaled in been ings 86, connected to the right-hand end of plate 14. This rocking arm is bent upwardly and to the front of the machine in such a manner that its inner end. projeets above the topof stem 53. Upon the elevation of this stem by solenoid 47 the arm 85 is engaged end rocked. As seen. in. Fig. 10, this rocking arm carries at its other end it crank-arm 87, which is connected by a link 88 to' the righthend end of the plate 21. follows that when the SGlQCtOP-fil'lil is lifted for its return movement the arm 85 will be rocked so that. through the link 88 the plate 2] is drawn to the right sufficiently to enable the dog 30 to :igein cetchbehind the tooth. 31 and per mit the lifted stop to drop by'grzivity back to its initial position. A spring 89 may be used toengage the contect-zirni 27, so as to insure the breaking of the contact end the forcing of. the dog 30 into position behind the tooth 31 upon the return of-theplete 2]. to

initial position. To prevent the selectorerrn jumping out of engagement with the crown-gear 56, its tooth 55-is provided with parallel faces 90 and. 91, which positively env gage the shouldered sides .of the teeth 92 of the crown geer, so that thjefltooth 55. isin positive engagement ,with the crowmgear so ia'r as inovenients in a; horizontal plane in either direction are concerned. The tooth will, however, readily disengage itself from the crown-Wheel when moved vertically. This arrangement prevents the selector-urn. jumping from the crown-wheel under rap d operation To prevent the anvil 34 jump ng;

under the hem nering-stroke's of the core; and give the full time for the make and break anvil, I may provide it flat spring 93,-connect ed to the rear wall of the cesingendadepted to ride over a curved lug 94; carried .by the anvil. This preventsthe anvil. rebounding. Having thus described. the local-circuit selecting, mcchenisn'r inclosed within the body of the casing, attention will now be dirooted to the devices which move under the control of said mechanism for the purpose of operating the type-Writer. Referring to F33, it will be seen that'all. parts of the type-writer proper are mounted. upon the detachable top 2 to the casin They are adapted for visible typewriters, e though any other desired form maybe substituiied within illii COIllPD'l let-ion of myinvention and comprise. pi e erebly, a platen. Hi0, journeled in ehiltrelly-shifting carriage ml. This cerrizi'ge is supported at its front: side by a slide 102, having its side 4-5 for small letters, one for capital;

' 'beveledao as to make adovetai'l. joint 1 t with an undercut guide'103, mounted on the top 2 by supports 104 and adjustable thereon from front to rear; At its rear side the car- 5 riage 101 is connected to a rack-bar 105, pro

vided with similarly-dis osed teeth on its top and bottom edges. he end bars of the carriage are slotted and pass on either side of a rod lfiofwhich is suitably journaled in to arms 107 and 108, which project frmn-the opposite sides of the top 2'and are bent upwardly. The carriage 101 at its Iightrhand and carries a gearrwhecl 1.09, which has atongue thatenters a longitudinal groove 110 :5 in the rod 105. 3 The gear 109 meshes with a second beyeled gear 1.1-1, mounted on a short shaft 112, which also carries a larger l-aeveleil I gear 113, adapted to mesh with a gear 114 on. the axle of the platen 100. The shaft 112 is 2: journaled in the frames 115 and 116, rigidly connected to the end of the carriage and bent over and aroundthe gears, so that thcyfurnish hearing-points for the shaft 112 on both sides. The frame 115 is,

of the gears 111 and 113.

2 5 continued at right angles. in front of the gear 111 and serves as'an outcrstop .to hold the gear 109 against lateral'moveincnt with the rod 106.

In front of the platen I rovidea set of o twenty-six pririting-solerioi s 117 disposed at an angle to the top 2 and connected to angle-irons 118, which in turnare connected to the top. These several solenoids, as seen Fi 1,, are oblong in 'crosssection and dis- 5 pose on edge and in staggered relation, so that they niay be closely positioned at the front of the machine. Each solenoid has a "wide fiat core-119, connected to a curved rack 12().- The racks are so disposed that 5o'its printing position' Antifiiction-rollers 125, mounted upon a common curved shaft -126,'sup orting the standards 124, severally engage t e under faces of the several racks' 120 and hold them inmesh with the toothed 5 5' ends in the type-bars. The several solenoids 117 are each connected by a wire-k te a con' tact oint" 127, ofwhichthere are thirty, whic r depend from the front edge of the top 2, so that when the latter is in position 6 they engage the several spring-contacts 18,-

mounted in the casing and conn cted by wires 17 to the contactlates 15. hen the top is in iosition, eac 1 of the plates 15 s connected y these means with its respective 6 5 solenoid 117, which is thereby included ,in it brea local ,.operating-eirouit normally broken atthe selector mechanism. "$11168 rapnlity of operation is of vital importance to a machine of this character, it

will be seen that the controlling mechanism will act slowly if called upon to more than instantaneously energize the printing and carriage-operating solenoids. Th1s cannot provide these solenoids, so I use an automaticswitch, which is attracted'to the so- 'lenoid as an armature the moment the former I is energized and shunts a current through the solenoid :until its core has completed its travel, when; the switch is automatically opened, the secondary circuit broken, and t e core free to be returnedto its initial position by a coiled spring. 1 This shunt mechanism, which 15511111131 for the several printingsolenoids, is best seen in- Fig. 21 and comprises a spring switch-arm 128,-suitably mounted at'the lower end of thesolenoid and connected b branch wire n with the wire 6. A metallic h ock 1.29 is fixed in the lower end of the solenoid and is magnetized by the instantaneous flow of the current therethrough and acts to attract thearm 128 as an-arinature until its 'Suter end engages a contact-' point 130 in circuit with the wire entering thesolenoid. The instantaneous closure by the selecting mechanism of a local operating circuit-will cause-the switch 128 to close a I I secondary or shunt circuit through the .sol151101;l-,111 which. the current will flow from the wires 6, along wires n, switch-arm 12Sycon tact 130-, along wires k, through the solenoid to the wires 7', and thence to the battery This maintains the flow of the current through the solenoid until the inner end of:

128; By this means the solenoid continues to act uponits core 119 until the latter has com leted its travel, when it automatically the shunncircuit by means of pin 131 and is freeto be returned to 1n1t1al position by the coiled spring 132, which is disposed between the lnner'end of the core and the block 129. The magnetization of block 129 causes it to attract theco-re as it approaches,

thereby insuring to the latter a ful stroke. i

and rapid v As each type-bar is swung on its pivot to print it .is adapted to engage the ribbongu-idc frame 133, journaled at its lower end in studs 134, mounted on the top 2 and mmlated therefrom, this slight movement of guide-frame acting, through the Inechams'in hereinafterdescribed, to autoinatipally space the platen carriage after each-letter is printed. The ribbon 135, as seen inllig. 14,- is in the form of all endless'band which moves in the direction of the arrow, beingltygisted froin passes the horizontal position in Will through loops in the free-end of the guideframe 133 by means of two other guides 136 and. 137, mounted on a common standard and adapted each to give the ribbon a quartei turnpso that it will pass over a iced-roll 138, driven by a shaft 139, supported in standards 140 and driven by a dog 141, eonnecte to the spring-barrel 142 and meshing with aratchet-wheel 143, rigid on the stem 139. A irictidmroll 144,- which is jo'urnalcd so that a portion of it is disposed below the top 2 of the casing, serves as a friction-roll to coo crate with roll 138 in drawing the ribbon ant. passing it with the half-twist to be wound around four vertical flanged guide-- rollers 145, Fig. 1;' disposed at the opposite side of the top 2. The ribbon is wound around these four guide-rollers and is taken oil? from one of them toward the ceriter and twisted by a guide-tube 146, which takes the ribbon on edge, turnsit, and. delivers it in line with the guide-loops of the frame 133 and in a horizontal position. This mechanism provides for a continuous endless feed, the sprin -barrel 142 and shaft 139 acting in 'the usual 'manner-to feed the ribbon as the printing-carriage is advanced duringthe operation'oi the machine.

A space-key controls, preferably, the firstr stbp 12 and when depressed closes a local op crating-circuit to thesolenoid 117, having a plain core which is direct connected to a con .t ct-s rin 1 17, normally in engagement ith t e ri bonframe'133.'- The core is prefgsrerably not acted upon by a sprii1g132, the spri '147 being sufiicient to move 'it outward y after its short instroke. '.The SP 147 will not follow the ,frame133 when mo ir l by a key-bar. The studs 134 prevent the frameswingin upwardly beyond the position shown in ig. 3 and following the spring 1 14,7. 1 A wires connects the frame with wire a and battery B, and a wire 8. "leads'from' the contact-spring'147 to a spacing-solenoid 148 and thence back to the battery. This solenoid is normally energized,.its circuit being closed by spring 147 engaging frame 133 and acts to draw its core 149 inwardly against the action of sp'ring150, connected to the stand- 5 ard 151, as bestseen in Fig. 17. p This standard is disposed at the rearof the casing and extends abovethe'rack 105, being provided at its upper end with a dog 152, which en gages the upper set of ratchet-teeth. At-its outer end the core 148 is connected to an arm 153, -pivotally mounted on a stud 154= in the standard 151 and provided at itshpper end "with a spring-pressed'pawh155', which enages the lower ratchet-teeth, being disposed 6 the same. direction asthe pawl 153. These 'two pawls normally engage the rack-bar, so that when the spacing-solenoid is denergized thespi'ing 150 shlftspawl 155 to pos1- tion Where'the solenoid when next energized before i i hand end and will advance the 'printing-carriage the space of one lc-ti'er against llil :iciion oi ilieretiiinspring, the carriage bring licld against return JilOVtfliHlli by the pawl 152. lhe spacingsolenoid circuit is broken when ilu- .s'UlPilUlCi 117", roiiiiecti-d. to spring H7, is iJ-iii-rgized and draws the spring out of eiigiigeinoiii with iiaiiii 1213;. ll is iilso lii'iiliili by the slight forward iiim'viiii-i'ii giif'eii the iriiiiir 13:? by the eng igeiiioiii of a iypo-bar therewith just not operate a stop 12, but which closes the circuit on the solenoid 313 and. permits the selector-arm tojtravel to the last contactplate, where-it is stopped by the lug 156, Fig. 2, and closes local circuits to the clutch solenoids 67 and to the carriage-returi'i solenoid 156. This latter solenoid is'provided with a shunt-switch and connections in the case of solenoids 117 and a free core 157', connected at its outer end to an arm 158, pivotally connected to the base 1 and to a bar 159, supported in a guide 160 on the standard 151 and disposed on the opposite hes the platen iii the iiirii ofprinlside of the rack from said standard.

This bar carries a wedge-plate 161 adjacent to the bottom edges which are adapted to engage pins 162, carried by thepawls 152 and 155.

its core being free will move inwardly and remain there, the wedge-plate being moved thereby against the pins 162 and acting to hold them out of engagement with the rack, thereby leaving the carriage free to be returned by the spring 163. riage without too great a jar, I provide it with a plunger 164, rigidly connected to its right 165, supported by the. arm 107. Any other form-offlcushion or stop may be provided. The spring 163 is connected to an arm 166, projecting rearwardly from the carriage and in a position when the carriage has con'ipleted its return to engage, the end of the bar 159, so as to throw the wedge-plate out of en gagement with the pins 162, thereby perat the end of lines when arm 166 moves bar 159 to trip the pawls.

I provide a special ruling-key which preferably controls the stop 12 opposite next. to]

the last contact-plate 15 and closes the circuit To stop the can.

dapted to enter a dash-pot \(Vhen the solenoid 156 is energized,

' mitting the pawls to again engage'the rack to a vertically-disposed solenoid 167, ,coni nected to the top 2 and provided with corev 168, which is-s\i'i .-'elly connected at its upper end to an arm 169, loosely journaled on the rod 106 and carrying at its outer end a (lepciulingspring-pressed pa'wl 170, which eng'z'i-ges a ratchet-wheel 171, keyed to the rod 106. The solenoid 167 being provided with the usual shunt-switch and Connections and the platen; a shaft 172 is journaled in stand-.

a U1)1]LPI'CSSlOJlSI)1'lDg, all as described in 0011- nection with solenoids 11?, acts upon the depression of the r ding-key to draw its'core (hm-'nwai'dly su'liieiently to rotate the rod ]U()"th.e distance of one tooth. This movement of the rod through the several beveled gears already described in connection with Fig. 16 turns the platen the distance of one line.

.The t3-'[)8-l)tl$ 122 are preferably provided with three type so arran ed that each of the printing-keys will upon t is proper shifting of the platen print small letters, capitals or numerals, and punctuation-iiiarks. To shift ards 173 atthe rear of the top and' is provided with a plate 174 at each end beyond the standards. Rods 175 are ec'centrically connected to these plates and pivotally connected to each end of the guide 103'for the car- I riage-supiiorting slide 2, carrying the platen. eyed to the shaft 172 is a circular diSk'176, (seen in detaih in Fig. 18,) in the eripli'ery of which is provided fourrectan'guar notches 177 and four-ratchetteeth 178,

- spaced equidistantly. The shift-key 'con trols the. stop opposite the second contactplate 15 and'contr'ols the circuitconnections to a solenoid 1'79, connected-to the under side of the top andiprovided with a shunt-switch and connections and compression-spring like solenoids-117. This solenoid has a core 180',

pivotally connected to a bar "181, provided at its; upper end with anelongatedslot 182, into which projects a pin 183, carried by an arm 184, loosely joi rnaled Ion the shaft 172.

This arm carries a depending plawl 185, adapted'toengage the teeth 178. IThe bar 181 carries a shoulder 186, having a slanting upper edge and 'a-sqiiared under face which,

is adapted to en age one-end of a locking- .lever 187, pivotal ly' IllOllIltQd'lIl an extension 188.01 one 'of the standards 173 and pr'ovided at its other end v with abcnt portion adapted to engage in oneof thenotches 177 1n operation. the compression-spring 189' I normally holds the parts in the position shown in Fig. 18. operated, tl esolenoid 17 9. draws the bar 181 downwardly. For the first part of its stroke before the or end of slot 182 engages the pin 18-3, the

i ?v acts through the shoulder 186 to strike the .locking-lever'1-8J antl i'iio've I. it out of engagement Irith the notch l;7,7 to the osition sewn; in dotted} lines; after which downwardly and shaft and "the eccentric pressions for numerals. may be provided, which is moved by one. of

theecceiitrio bars toindicate the position of! the operator how many depressions of the shift-key are necesto move the platen to the desired pe t When the shift-key is the 184 and itsfrlog 11*85 aremoved;

'byengagei'iient :with a -tooth"1-78 move the plates 174 a quarter-i'evolution. The shoulder 186 will pass by the locking-lever onits do'wnstroke; and its slanting upper face will permit it to ride by the lever on its It will be seen that that the plates 174, by means of. eccentric bars 175, are capable of shifting the guide 103 to three positions. When the plate swings the bar farthest to the rear, the

platen will be in )osition to print small let V will move it to print capitals and two de v the platen and to show sary , Having thus described the manner of op eration of an electrically-controlled 'typewriter -'constructed in accordance with my invention, 1' will nowshow how it is per- .fectly adapted for use where a number of ma- A small indicator upstroke. by reference to Fig. 20'

If the plates be a vancedplaten ispression of keychines are disposed at distant point'sand, are

wconnected controlled by the operation of the. mac

serving as the transmitting ty e-Writer-arid all print the same matter. This arrangement is indicated in- Fig. 4jwhere it will be seen that the mainsline circuit, including thebattery Bl and the relay-ma et 38 in the up in circuit so that they magi-be:-

'transniitting machineg also in'o udes the relayy magnet 38 of a receiving-machine. This main-line circuit ma.

cciving-machines as. esired,

ITO include as many re- 3:1.

each-being pro;'

ivided with a magnet 3 8,'includsdin that air- 1 cuit. The controller circuitsja; bo'f the secondary machines, whichincliid the solenoids not be closed, and the to close theswitches' C main line circuitismade and brdken at the switch 0 of the 'transinitting-machinejwith the result synchronously energized denergized. These several magnets in the manner already described will through theswit'ches-D and D control the make and'break of several, localcircuits-to the solenoids t1. As these several solenoids reciprocate their cores the several;-

selector-imns in all of the machines. aresimultaneously and synchronously advanced I 5' .33, are broken, since the sWitch-ar-m-271Will: g

anvils 34 will all dro'p' r and cut .the. may; magnets 38 into the main-line circuit. This that all of the magnets 38 38. are I over the contact-plates, and when the clut'ch- I claim as new, and desire to secure by solenoids 67 of the transmitting-machines ters Patent, is are energized by the contact of its selector- 1. In electrically-connected printing-maarm with the raised stop the main-line circhines, a local-circint-selecting mechanism 5 cuit is simultaneously locked in its make or for each macln ne comprisingasunflower and i "break position, whereupon the solenoids 70 a movable switch cooperating therewith, a] of all of the machines are simultaneously local controller-circuit for each selecting cut out of circuit and the several local printmechanism, electrically-controlled means inv ing or operating circuits closed through the eluded in each eontroller-c1rcu1t and adapted corresponding contact-' late in each ma to operate said selecting mechanisms with 7 chine. The several sel ector-arms can .adsynchronous step-by-step movements, elecvance only the distance of one plat with tromagne'tic devlces to make and break said each make or break of the main-hue circuit, controller-circuits and which are connected I and therefore they will allbe brought to rest together, and a key-controlled circuit in the 5 by the same make or break, so that perfect transmittiiig-machine which includes de- 80 v synch'ronism is obtained. The several ma vices to energize and deener me the makechines will then automatically and synchronand-break devices for the loca controller-cirously return their respective selector-arms cuits of both transmitting and receiving mato their initial position immediately after chines in unison, F v theolosing of the desired operating-circuit 2; In electrically-connected printing-ma.- 85 and while the printing or carriag'ershifting chines, a relay-magnet for each machine in? operation is' going on. By permitting the cluded in a main-line circuit, alocal conselecting mechanisms to resume their initial troller-circuit for each machine which in.- or unison )ositio'n during'these operations a eludes a local battery and a makeand-break' decided advantage is gained in the matter of switch adapted to be operated by one of said 90 synchronizing themechamsm, and prevent relay-magnets, local-circuit-'selecting meching the possibility of starting the selecting anisms comprising a sunflower and a movmechanism from other than their unison poable switch-arm cooperating therewith elecsition. In fact, it is impossible to do this trically controlled by' the action of said relayaccording to 'my invent1.on,for neither the magnets on the local controller-circuits and 95 transmitting nor receiving mechanisms peradapted to close corresponding local operatmittheir selector-arms to engage the actuating-circuits ill the several machines, in coming-wheels 56 until they have'resumed their bination with a make-and-break device 'unison position; V which is cut into the mainline circuit. to 5 It is desirable to provide the printing-rna- -make and break it at the transmittingemaico chines with a continuous paper-feed. To chine only, and key-controlled mechanism ..this end I provide supports 190, connected which cuts said deviceintoand'out of service, to one side-of the-top 2 and adapted to reits periods of operation varying for each key. 'ceive a roll of pape'r.l9l. Thepaper from 3. In a system of communication by elec- 0 this roll passes transversely of the machine trically-connected printing-machines, 4 the 105 to an angularlyj-disposed guide 192, coni combination of a plurality of type-machines nected to the carriage-frame. Paper leaves l having printing mechanism controlled "by this guide in position to pass under the platen 'local circuits, contact-plates for the local op- 100. -To prevent the paper being jerked oil crating-circuits of each machine, a contact the roll by the movements of the carriage, I- member which engages said plates, electricr 30 provide a free roller 193, which rests on top 1 ally-controlled means for moving the co ntaet of the-paper midway between the roll 191 and members of the transmitting and receiving the guide, its weight being suiiicient to lieep machines in absolute synchronism; which the paper pulled ed the roll and to maintain means, responding to main-line current 'im .5 sui'licient slack'between the roll and the carpulses of constant polarity, advance said 1 15 riage to prevent the latter jerking or tearing arms to 'a diilerent'controlling position with the paper. c p v each make and each break of said main-line Throughout the specification I have recircuit, keys at the tri-tusmitting-m achine, ferred to the use of solenoids, but it'wil-l be and key-controlled means to-make and break understoodthat other electromagnet devices the main-line circuit a di'li'erent number of :20 m y st ut d times for each key.

,As required by the patent statute's, I have I 4-. The ':o1nbina tion in a system oi elec described one Operative mechanism. which i trirally-connected 'printimgr-machines, of a illustrates the principles of construction and set of contact-plates for each machine, local;

operation which constitute my il'ivention, o'pcratirig-circuits connected to said plates, 0, 12 5 but it will be understood that equivalent comma-arm movable over said plates, ele'c} anismsmay'besilbstituted and the de tromcc ical mechanisms included in local f'" OQStIE ctiQhJ :inodified, within thrc-o1i.ti'oil rcniisi'or controlling the forward of myrnventioni 1 travel in d arms of both transmitting.and

aving thus described lllylllt'ellt lflll, what Q receiving n achinos in unison with astvp-by- [3o step movement meelmnisms bci lay-magmas in a main-line circuit, a make arrddvrcak device operating on the mam-line circuit and key- :1mtrolled mean mil-ting"machine to slal'tsaid make-midbreak device from a unisompointand'stop it after a determium'l number of makes and breaks, said electroniechanical mechanisms being adapted to advance said arms into engagement with a dili'erent plate with each make or break of the main-line circuit, and means which act automaticall}, when the contact-arms are stopped, to swing them freely back to unison posit-ion.

5. In a printin -telegraph, a circuit-selecting mechanism comprising contacts concrating-circuit open arm, and means included in each of said 0 'its initial position,

nected to local operatin -circuits and a movable contact-arm, a local controller-circuit and mechanism controlled thereby tomove said arm into engagement with said contacts, mechanism brought into operation by the depression of a key which rapidly makes and breaks said controller-circuit, causing said arm to advance-step bystep-over said con tacts, key-operated mechanism to arrest the t1 avel of said contact-arm to close-a local operating-circuit, means to hold said local opduring the travel of said device, in a circuit closed upon the en age at the trans I over said contact-plates, said I set of no; in 't'iu'n controlled by re i l l I l local-circuit cont-acts, a conlacl.arm for each set of contacts, a source of electricity, electron]agnetically-controlled n ieans to advance said arms step by step and in unison over said contacts, local operating-circuits leading from said conti-irzts, means to simul taneously arrest the advance oi all said arms by stopping the arm of the transmi 1' ting-machine, means to break the local operating circuits during the arms travel over the contacts and to automatically close corresponding operating-circuits through the arms when they come to a stop, and means to restore said arms to initial position immediately after closing an operating-circuit.

9. In a system of communication by electrically-connected type writers, type-writers each comprising type-bars, a carnage, electroma nets for operating said parts, contacts, lbcal operating-circuits connecting said electromagnets with said contacts,-a contactarm and-asource of electricityjin combination with electrically-controlled mechanism to move the contact-arms of said machines with a synchronous step-by-step movement over said contacts, means to break the local Z I, I

operating-circuits to said eontactsduring the travel of said arms and close corresponding operating-circuits only when the arms stop, means to return the arms to initial position instantly after closing an operatingircuit, and means under the control of the elect-romagnet included in the operating-circuit last closed, whichholds it energized, until it has completed its function. 1

10. In a system 'of' means of electrically-connected printingmachines, a machine comprising in com bina tion, a-local-circuit-controlling contact-arm,

a toothed wheel to move 'saidlarm, electromagnetlc means to control the travel of said toothed Wheel, a mechanism to automatically communication by disengage said arm from said wheel and reand an electromagnetic ment of said arm with a stop, which c oses the circuit to said contacts and brings said arm under the control of said returning means to restore it to initial position.

.7. In a printing-telegraph system, a typewriter comprising keys, a contact arm coo crating therewitl'i, stops controlled by said eye and adapted'to arrest the travel of said arm mengagement with one lnitial said contacts, electroinzignetically-controlled means to advance said arm from its position, a-spring to return said arm to )osition, and-a circuit which is closed he travel of said arm is arrested by one of "said stops and which includes electro magnetic means to free said arm and permit said spring to return it toinitial position.

' i ommunication by means of electrically-connected printing-machines initial when t.

. n 0 l, I u said-machines comprisingin'combmation, a

set of contacts, a l

to each contact,

store it to initial position immediately after closing a local operating-circuit,- an electro magnet for operating a prin cluded in said local circuit, and auxiliary means to energize said magnet after said arm has broken the local circuit, substantially as described. V

l 1. In a system of communication byelecs trically-connected typewriters, the combination of a set of contacts for said type- Writers, a local operating-circuit connected contact-arms which engage .Said sets of contacts and are moved in unison I to temporarily close corresponding local opv at in ycircuit, el eetron'i crating-circuits in the several macl'iines, means to holdthe local circuits normally open, means to restore said arms to initial position immediately after closing a local opercluded in said loeal circuits, secondary circuits and means controlled by said magnetic devices to shunt the secondsrywrcuir eur- I l O ting device magnet-ic devices -in rent through them and to'break-said circuit when the devices have completely func-v tioned;

1.2. 111 a printing-telegraph system, elec -each magnet and automatically opened when said ma et has completed its printing function. ani secondary circuits including a local battery which are shunted through said mag- 30 'ncts by the closing of said switches, as and for the purposes described.

13. In a system of communication by electrically-connected ty til-writers, the combination of a plurality sets of contacts, a plu- 125 rality. of local circuits connected to each set of contacts, contact-arms which engage said contacts and are moved in unison to temporarily close corresponding local operatingcircuits in the several machines, means to automatically break said local operating-circuits during the travel of said arms, means to .close a'local operating-circuit in each machine when the arm' is stopped, a printingniagnet includedin said local circuit, ineans 5, to instantaneou'sl .break said local operating-circuit in eac machine and restore the arms to initial position while s'aid printing- 'magnets are. performing tneir function, and means to shunt current through said magnets during the return travel of said arms.

14. n a printing-telegraph, a local-circuitscle'cting mechanismcomprising a shaft, a contr ct-armcarried b said shaft, a series oi contact-plates with w \ich'said' arm engages,

. 5 a's; ringmeans to advance-said arm with a step-by-stp' movement "over said plates, means to disengage said arm from said spring means, and means to cll'cct a free and instantaneous return ofsaid arm to its initial posi- 5 tion after disengagement from said spring means.

15. In a printing-telegraph, a l0cal-circuit ,selecting mechanism comprising a shaft, a contact-arm carried b said shaft, a series of 5 5" co'ntactplates with w iicl 1 said arm engages, fa. toothed" wheel normally in engagement with. saidarm a spring which: tends to move.

said wheel-sin one direction, an electromag- :netic device ,1 1 'a c1rcu1t' controlled by said d.ami .w l'nch-'d1se gages, said arm from said saidshaft and wound up by its movement with its initial position when it is disengaged from said-whee I e toothed-whee a coiled spring, connected to id"wlieel, which restores raid arm to 16. Iii a printing-telegraph, a local-circuitselecting mechanism. comprising a contactar1n,,a series ofleontacts, a solenoid in a local circuit controlled by said arm, and a core for said solenoid with which said contact-arm is connected and by which it is moved out of engagement with said contacts, substantially as and for the purposes described.

17; In a printing-telegraph, a local-circuitselecting mechanism comprising contactplates, a contact-arm, in engagement therewith, a solenoid having a core which supports said arm, a spring connected to said core and adapted to counteract movements thereof which tend to advance said arm over said contactplates or disengagelt therefrom, means to advance sald arm over stud plates,

and means to arrest-said arm and close a,

determined local circuit and a circuit'including said solenoid, said core being moved bythe 8 5 solenoid when energizedto free said arm and permit said spring to return it to initial'position. a

187 In a printing-telegraph, a local-circuitselecting mechanism comprising contacts, a contact-arm, a toothed wheel with which said arm normally engages, a spring to turn said wheel and advance said arm over said contacts, means to wind'said spring as the toothedwheel is advanced thereby, a,solen- 9 5 oid included in a circuit controlled by said arm and adapted to disengage it from'said WheeL'and means to restore said arm to ini- 4 tial position before permitting itto again engage said wheel. a I roe 19f In a printing-telegraph, a local-circuitselectin'g mechanism comprising contactplates,'a contact-arm adapted to engage said plates, a rotatable element with which said arm is normally in engagement and by means m5 of which it is moved over said contact-plates, an electromagnetic device, .in a circuit controlled by said arm, which disengages said arm from said element, means to return said arm to initial position before it reengages said I 0' element, and local-circuit connections controlled by said. device and arm and adaptedto hold said arm free of said element until it has reached its initial position.

I 20. In an electromechanical,type-writer, a n5 set of keys, a local-circuit-selectm mechanism, 'a make-and-break device me uded' m a controlling-circuit for said mechanism, elec- 

